Stereoscopic Display With Alternating Pixel Widths

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Solution Overview

Problem

Current 3D display devices face challenges in reducing crosstalk and enhancing image quality, particularly in achieving natural 3D images and improving 2D display quality.

Innovation Solution

A display device configuration featuring alternating series of pixels with different horizontal widths, combined with a light beam control system using a parallax barrier system, where the barrier parts are designed to control light passage and blockage based on display mode, allowing for enhanced image quality by reducing moire and crosstalk.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a parallax barrier system is used for 3D display, then multiple viewpoint images can be displayed simultaneously, but crosstalk between left eye image and right eye image occurs

Engineering Contradiction:
Improve3D display capabilityVSAvoidcrosstalk
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The display panel is divided into multiple pixel series with different horizontal pixel widths, where first series pixels and second series pixels are arrayed alternately. This segmentation allows different pixels to serve different functions for 3D display, reducing crosstalk by assigning specific pixels to specific viewpoint images

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the display panel have different pixel widths tailored to their specific functions. First series pixels have larger horizontal pixel widths optimized for certain viewpoint images, while second series pixels have smaller horizontal pixel widths optimized for other viewpoint images, improving local image quality and reducing crosstalk

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If pixels of uniform size are used in the display part, then manufacturing is simplified, but image quality for both 3D and 2D display is insufficient

Engineering Contradiction:
Improvepixel array fabricationVSAvoidimage quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The display panel employs pixels with different horizontal pixel widths in different regions. First series pixels have larger horizontal pixel widths while second series pixels have smaller horizontal pixel widths, optimizing image quality for both 3D and 2D display modes while maintaining manufacturability through systematic arraying

Inventive Principle:
Principle #3Local quality

3Illumination intensity

If the aperture ratio is increased to improve image quality, then brightness is enhanced, but moire patterns become more prominent

Engineering Contradiction:
ImprovebrightnessVSAvoidmoire
Core Design Contradiction:
Illumination intensityVSObject-generated harmful factors

Solution Approach 1:

The display is segmented into multiple pixel series with different pixel widths, allowing optimized light passage control. This segmentation enables better control over light distribution, maintaining brightness while suppressing moire patterns through reduced aperture ratio in specific regions

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The horizontal pixel width parameter is varied across different pixel series. By changing this parameter systematically, the display achieves optimal balance between aperture ratio for brightness and moire suppression, with first series pixels having larger widths and second series pixels having smaller widths

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively reduces crosstalk and enhances image quality in both 3D and 2D displays by maintaining consistent brightness and suppressing moire, while allowing for improved brightness and reduced crosstalk, thereby improving the overall viewing experience.

Implementation Method 1

a light beam control part that controls a light beam from the display part or a light beam toward the display part

Methodology Applied
Scientific EffectLight control: Light

Data Source

PatentUS10455223B2Stereoscopic display device with selectively transmissive parallax barriers
Publication Date: 2019.10.22 MAGNOLIA WHITE CORP
  • US10455223B2 patent drawing
  • US10455223B2 patent drawing
  • US10455223B2 patent drawing

AI summary

A display device including a display part including a pixel of a first series having a first horizontal pixel width and a pixel of a second series having a second horizontal pixel width smaller than the first horizontal pixel width, the pixels of the first series and the pixels of the second series being arrayed alternately in each of a horizontal direction and a vertical direction, and a light beam control part that controls a light beam from the display part or a light beam toward the display part.